Question

In a series of tests, A appeared for 8 tests and each test was marked out of 30 and averages 25. however, while checking his files, A could only find 7 of the 8 tests. For this he scored 29, 26, 18,20 , 27,24 and 29. determine how many marks he scored for the eighth test.

Answer 1

Answer:

27

Step-by-step explanation:

Find the total score of the 8 tests:

Average = 25

Total = 25 x 8 = 200

Find the total score for the 7 tests:

Total = 29 + 26 + 18 + 20 + 27 + 24 + 29 = 173

Find the score for the 8th test:

8th test = 200 - 173 = 27

Answer: He scored 27 marks for the 8th test.

Answer 2

Answer:

Step-by-step explanation:

27

Step-by-step explanation:

Find the total score of the 8 tests:

Average = 25

Total = 25 x 8 = 200

Find the total score for the 7 tests:

Total = 29 + 26 + 18 + 20 + 27 + 24 + 29 = 173

Find the score for the 8th test:

8th test = 200 - 173 = 27